The National League East was one of the busiest divisions in baseball this offseason, with all five teams wheeling and dealing to set themselves up for success in 2013 and beyond.

Some teams—like the Atlanta Braves, Philadelphia Phillies and Washington Nationals—are built to win now, and their moves reflect that mentality.

But for the New York Mets and Miami Marlins, the future is what matters. Both teams made major trades that shook up their rosters but could pay major dividends down the road, while also adding solid role players.

Atlanta Braves: Justin Upton

The Braves decided to complete the Upton brother set when they traded for 25-year-old Justin this winter. The former Arizona Diamondback adds some power and speed to the Braves lineup.

The younger Upton had a bit of a down year in 2012, hitting .280 with 17 home runs and 67 RBI.

But if he can come close to repeating his 2011 numbers—when he hit .289 with 31 home runs and 88 RBI, with 21 stolen bases to boot—the left fielder could be an even more valuable acquisition than his brother.

Philadelphia Phillies: Michael Young

The Phillies acquired Young in a trade with the Texas Rangers this offseason, and the veteran will fill in at third base.

Not only does Young add leadership to the team, but the third baseman brings some serious skill both in the field and at the plate.

Young may be 36, but he won the American League Gold Glove at shortstop in 2008 and is a seven-time All-Star.

He had a bit of an off-year in 2012, hitting .277 with eight home runs and 67 RBI. But Young will be a steal for the Phillies if he can return to his 2011 form when he hit .338 with 11 home runs and 106 RBI.